Product Description
4J29 (also known as Ni29Co17, KV-1, or Kovar FeNi28Co18) is a precision nickel alloy wire primarily composed of nickel, cobalt, and iron. It is known for its excellent thermal expansion properties and is widely used in applications where precise dimensional stability is required across a wide range of temperatures. This alloy is commonly used in electronic, aerospace, and industrial applications that require a controlled expansion rate to match the properties of other materials, such as glass or ceramics.
Below is a detailed overview of 4J29 (Ni29Co17, KV-1, Kovar FeNi28Co18) precision nickel alloy wire.
| Property |
4J29 (Ni29Co17, KV-1, Kovar FeNi28Co18) |
| Chemical Composition |
Ni: 29%, Co: 17%, Fe: Balance, C: 0.03% max, Mn: 0.5% max |
| Tensile Strength |
High tensile strength suitable for structural applications |
| Corrosion Resistance |
Good corrosion resistance in non-acidic environments |
| Heat Resistance |
Excellent resistance to heat and thermal cycling |
| Magnetic Properties |
Low magnetic permeability, non-magnetic at room temperature |
| Electrical Conductivity |
Moderate conductivity |
| Weldability |
Good weldability and ease of fabrication |
| Common Forms Available |
Wire, rod, strip, sheet |
| Applications |
Electronics, aerospace, medical devices, glass-sealing applications |
| Operating Temperature |
Suitable for use in temperatures up to 600°C |
Key Properties of 4J29 (Ni29Co17, KV-1, Kovar FeNi28Co18):
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Chemical Composition:
- Nickel (Ni): 29% - Provides the primary structure of the alloy, contributing to its strength and resistance to corrosion.
- Cobalt (Co): 17% - Enhances the alloy's strength and thermal expansion properties, making it ideal for matching materials with different thermal expansion coefficients.
- Iron (Fe): The balance - Forms the base metal, giving the alloy good mechanical properties and flexibility.
- Other Elements: Small amounts of carbon and manganese are included to improve the alloy's fabrication and performance characteristics.
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Thermal Expansion Control:
- One of the primary benefits of 4J29 is its ability to match the thermal expansion properties of other materials, such as glass and ceramics. This is especially important in electronic components or devices where precise thermal expansion and contraction are crucial for maintaining structural integrity.
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High Tensile Strength:
- 4J29 offers good tensile strength, which makes it suitable for applications where the alloy will be subject to mechanical stress. The alloy maintains its shape and strength even when exposed to extreme temperature variations.
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Corrosion Resistance:
- 4J29 has good resistance to corrosion, particularly in non-acidic environments. However, it is not recommended for exposure to highly corrosive environments such as acidic solutions or seawater.
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Heat Resistance:
- The alloy exhibits good heat resistance and can maintain its mechanical properties up to temperatures around 600°C. It is ideal for applications that experience repeated thermal cycling or exposure to high temperatures.
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Magnetic Properties:
- 4J29 has low magnetic permeability and is non-magnetic at room temperature. This makes it suitable for use in sensitive applications such as electronics, where magnetic interference can be problematic.
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Weldability and Fabrication:
- The alloy is easy to weld and can be processed into a variety of forms such as wire, rods, and strips. Its good weldability ensures that it can be used in applications requiring complex shapes or connections, especially in industries like aerospace and electronics.
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Applications of 4J29 (Ni29Co17, KV-1, Kovar FeNi28Co18) Precision Nickel Alloy Wire:
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Electronics Industry:
- 4J29 is commonly used in the electronics industry, particularly in components that must be sealed to glass, such as electronic tubes, cathode ray tubes (CRT), and semiconductors. The alloy's ability to match the thermal expansion of glass and ceramics ensures a secure seal and prevents damage from thermal cycling.
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Aerospace Industry:
- In aerospace applications, 4J29 is used for various components that require dimensional stability at varying temperatures. Its high strength and resistance to thermal expansion make it ideal for turbine engine components, sealing rings, and other critical aerospace applications.
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Medical Devices:
- 4J29 is used in medical devices such as implantable sensors and electrodes, where both dimensional stability and biocompatibility are required. Its low magnetic permeability makes it suitable for use in medical imaging devices, such as MRI machines, where magnetic interference needs to be minimized.
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Glass Sealing:
- 4J29 (Kovar) is frequently used for sealing glass to metal in various devices, such as light bulbs, electrical components, and scientific instruments. Its thermal expansion properties are designed to match those of the glass, ensuring a reliable and stable seal.
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Precision Instruments:
- This alloy is ideal for use in precision instruments that require stable electrical and mechanical performance across a wide range of temperatures, including thermocouples, sensors, and other high-precision applications.
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Advantages of 4J29 (Ni29Co17, KV-1, Kovar FeNi28Co18):
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Low Thermal Expansion:
- 4J29 has a low coefficient of thermal expansion, making it ideal for applications that require materials with stable thermal expansion properties, such as glass sealing and electronic components.
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Good Mechanical Strength:
- The alloy's high tensile strength allows it to maintain its structural integrity under mechanical stress and thermal cycling.
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Magnetic and Electrical Properties:
- Its low magnetic permeability makes it an excellent material for applications sensitive to magnetic fields, while its moderate electrical conductivity ensures it works well in electronic systems.
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Corrosion Resistance:
- 4J29 has a good resistance to corrosion in various environments, although it is not suited for exposure to highly acidic or seawater environments.
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Weldability and Fabricability:
- The alloy is easy to weld and fabricate into various forms such as wire, rod, and strip, making it versatile for use in different applications that require complex shapes.
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Conclusion:
4J29 (Ni29Co17, KV-1, Kovar FeNi28Co18) precision nickel alloy wire is an ideal material for applications that require dimensional stability, low thermal expansion, and good mechanical properties across a wide range of temperatures. Its versatility makes it suitable for use in aerospace, electronics, medical devices, glass-sealing applications, and precision instruments. The alloy's ability to match the thermal expansion properties of glass and ceramics ensures reliable performance in critical components, making it a vital material in various high-performance industries.
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Company Profile
Shandong Titanium Nickel Special Steel Co., Ltd., registered funds (one thousand yuan for 10,000 yuan), the company is mainly committed to high -tech enterprises that are integrated with special alloy materials, specializing in the research and sales of special alloys such as nickel -based and iron -based. Products include corrosion-resistant alloys, superalloys, precision alloys, Hastelloy, Monel, INCONEL, INCOLOY, copper-nickel alloys, titanium and titanium alloys, zirconium and zirconium alloys, nickel and nickel-based alloys, nickel-cobalt-based heat-resistant alloys , Hafnium alloy, etc., more than 60 kinds of alloy materials such as special stainless steel. On the basis of stabilizing the quality of the original products, according to the market demand, it solves the quality problems existing in the traditional metallurgical process, and ensures the low miscellaneous and low deflection of the alloy material products, which has won an excellent reputation in the industry.
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FAQ
What is a Precision Alloy Nickel Alloy?
A Precision Alloy Nickel Alloy is a specialized group of nickel-based alloys designed to perform exceptionally well in applications that require high precision and dimensional stability. These alloys are often used in electronics, aerospace, and instrumentation where accuracy, resistance to temperature changes, and mechanical strength are critical.
2. What are the primary features of Precision Alloy Nickel Alloys?
Precision Alloy Nickel Alloys are known for the following key features:
- Low and Stable Thermal Expansion: They have controlled and predictable thermal expansion, making them ideal for use in environments where dimensional stability is essential.
- High Strength: These alloys possess high tensile and yield strength, offering resistance to deformation and failure under stress.
- Magnetic Properties: Many precision nickel alloys offer excellent magnetic permeability, which is crucial in the manufacture of magnetic devices and components.
- Corrosion Resistance: They are resistant to corrosion, oxidation, and wear, ensuring longevity in harsh conditions.
- Weldability: These alloys are typically easy to weld and form into complex shapes without losing their properties.
3. What are common applications of Precision Alloy Nickel Alloys?
Precision Alloy Nickel Alloys are used in:
- Electronics: Connectors, switches, relays, and sensors.
- Aerospace: Components in turbines, engines, and high-precision mechanical parts.
- Automotive: Parts that require resistance to extreme temperatures and mechanical stress.
- Instrumentation: Thermocouples, strain gauges, and precision measuring instruments.
- Magnetic Devices: Transformers, magnetic sensors, and inductors.
4. What are the differences between Precision Alloy Nickel Alloys and other Nickel Alloys?
The main difference lies in the specific application and performance:
- Precision Alloys: Designed specifically for applications requiring high precision, stability, and uniformity in temperature and mechanical stress conditions.
- Standard Nickel Alloys: While nickel alloys generally offer good strength and corrosion resistance, precision alloys are tailored for applications where dimensional accuracy and material properties must remain consistent under extreme conditions.
5. What are some examples of Precision Alloy Nickel Alloys?
Some of the well-known precision alloy nickel alloys include:
- Invar (36% Nickel): Known for its low thermal expansion, used in precision instruments.
- Kovar (29% Nickel): A nickel-iron alloy used in electronic and sealing applications.
- 1J06 (1J6): A precision alloy with excellent thermal stability and low thermal expansion used in electronics and precision instruments.
6. What industries use Precision Alloy Nickel Alloys?
Industries that commonly use precision alloy nickel alloys include:
- Electronics and Telecommunications: For components that need stability and durability under varying temperatures and electrical loads.
- Aerospace and Defense: For parts exposed to extreme temperature changes, mechanical stress, and corrosion.
- Automotive: Especially in high-performance vehicles and systems like sensors and exhaust components.
- Medical Equipment: In instruments and devices that require high precision and long-term reliability.
7. What is the significance of low thermal expansion in Precision Alloy Nickel Alloys?
Low thermal expansion means that the material's dimensions remain stable even when exposed to temperature changes. This is crucial in high-precision applications such as measuring instruments, optical devices, and aerospace components, where even minute dimensional changes can lead to performance degradation.
8. How is Precision Alloy Nickel Alloy different from other types of alloys in terms of strength and durability?
Precision alloys, particularly those made from nickel, tend to have high tensile strength and excellent resistance to deformation under mechanical stress. These alloys are engineered to maintain their shape and structural integrity over a wider range of temperatures and environmental conditions, compared to other materials like carbon steel or standard stainless steel.
9. Are Precision Alloy Nickel Alloys magnetic?
Yes, many precision alloy nickel alloys, such as Kovar (29% Nickel), are designed to maintain stable magnetic properties. This makes them ideal for applications in transformers, magnetic sensors, and electronic devices that require controlled magnetic permeability.
10. How are Precision Alloy Nickel Alloys manufactured?
These alloys are typically produced using advanced metallurgical processes such as:
- Vacuum Induction Melting (VIM) or Vacuum Arc Remelting (VAR) for refining material purity.
- Casting and Hot or Cold Rolling to form sheets, strips, or wires.
- Precision machining techniques to create intricate components with tight tolerances.
- Heat Treatment to enhance mechanical properties such as strength, toughness, and dimensional stability.
11. Can Precision Alloy Nickel Alloys be welded and processed easily?
Yes, most precision alloy nickel alloys have good weldability and can be processed into complex shapes, making them suitable for high-precision manufacturing. However, the exact processing techniques may vary depending on the alloy composition and specific application requirements.
12. What is the price range for Precision Alloy Nickel Alloys?
The price of precision alloy nickel alloys can vary depending on the alloy grade, size, and supplier. Generally, they are more expensive than standard nickel alloys due to their specific formulation and high-performance properties. Prices typically range from $20 to $100 per kilogram or more, depending on the material's purity and market conditions.
13. How do I choose the right Precision Alloy Nickel Alloy for my application?
When selecting a precision alloy, consider the following factors:
- Thermal expansion requirements (low expansion or stable behavior under temperature fluctuations).
- Mechanical strength needed for your application (tensile strength, hardness, elongation).
- Magnetic properties (whether your application involves magnetic fields).
- Corrosion resistance for exposure to harsh environments.
- Workability (whether the alloy needs to be welded, machined, or formed).
14. What are the typical sizes and forms available for Precision Alloy Nickel Alloys?
Precision alloy nickel alloys are available in various forms, including:
- Sheets and plates for use in manufacturing and construction.
- Wire and strips for electronics and fine machinery.
- Rods and bars for precision machining.
- Foils for use in thin applications such as sensors or coatings.
15. How can I contact you for more information?
You can contact us through the following methods:
Online support: Visit our website for live chat
Address:
300 Meters North of Liaoniu Road and Xindong Ring Road, Liaocheng High-Tech Zone, Liaocheng, Shandong, China
We look forward to providing you with high-quality products and services!
If you have any other questions, feel free to contact us, and we will do our best to assist you!
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